Reduced Risk: Ovarian Cancer. Combo estrogen/progesterone birth control pills can lower your risk of this type of cancer. The benefit starts within 3 to 6 months after starting the pill. The longer you take it, the lower your risk. Depo-Provera also lowers the risk, especially if you use it for more than 3 years.
Sporangia are the structures that house and create spores in certain organisms. As many of these organisms are non-mobile, they have no choice but to release the spores out into the environment. This allows the spores, which are haploid, the opportunity to germinate and form gametophytes.
The sporangia produce very tiny spores. Spores are different to seeds. They do not contain plant embryos or food stores. When the sporangia break open, the spores are released and dispersed by the wind.If the spore lands in a suitable environment, it can grow into a tiny plant called a gametophyte.he sporangia produce very tiny spores. Spores are different to seeds. They do not contain plant embryos or food stores. When the sporangia break open, the spores are released and dispersed by the wind.